CN107549806B - Preparation method of natural flour additive - Google Patents

Abstract

A preparation method of a natural additive of flour is characterized by comprising the following steps: according to the weight portion; 50-80 parts of three-bristle cudrania root, 80-100 parts of three-bristle cudrania branch and 80-100 parts of three-bristle cudrania leaf; the method comprises the following steps: 1: taking 50-80 parts of cudrania tricuspidata root by weight, 2: taking 80-100 parts of three-bristle cudrania branches by weight, and 3: taking 80-100 parts of cudrania tricuspidata leaves by weight, and 4: and (3) uniformly mixing the concentrated solution of the three-bristle cudrania roots obtained in the step (1), the concentrated solution of the three-bristle cudrania branches obtained in the step (2) and the precipitate of the three-bristle cudrania leaves obtained in the step (3), carrying out freeze-drying treatment on the mixture at the temperature ranging from-60 ℃ to-40 ℃ and the vacuum degree ranging from 10Pa to 30Pa, obtaining freeze-dried powder, and packaging to obtain the additive. Has the advantages that: the extract of the natural roots, stems and leaves of the cudrania tricuspidata serving as the raw material is used as the flour additive, is purely natural and has no chemical synthesis, so that the nutrition, the health care, the coloring, the mouthfeel, the strength and the like of the flour can be effectively improved, and the problem of food safety brought by the chemically synthesized flour additive is solved.

Description

Preparation method of natural flour additive

Technical Field

The invention belongs to the technical field of food science, and particularly relates to a preparation method of a natural flour additive.

Background

The food additive is a chemically synthesized or natural substance added into food for improving the nutritional value of the food, improving the quality of the food such as color, aroma, taste and the like, and for the requirements of preservation and processing technology, such as a nutrition enhancer, a food spice, a processing aid for food industry and the like, and the functions of the food additive generally comprise: (1) the product is used for preserving, preventing deterioration and prolonging the service life of food, (2) improving the sensory character of the food, (3) improving the nutritional value of the food, (4) changing the production process of the food, and (5) meeting the dietary requirements of special people; the flour additive is widely applied, the quality of food taking flour as a raw material is improved, most of the conventional additives use potassium bromate as a tendon-strengthening component, bread processing enterprises will look for proper bread special flour and additives again since the use of potassium bromate is forbidden by China to keep the product quality and meet market demands, and for this reason, the bread special flour and the additive formula thereof need to be researched again to meet the requirements of the bread processing enterprises, so that the comprehensive competitiveness of the enterprises is improved, and the common additives are as follows: alpha-amylase, glucose oxidase, lipase, pentosanase, emulsifier, ascorbic acid, vital gluten and the like, but most of the additives are synthetic chemicals, have certain side effect on human bodies, and generally have certain pollution in the production process.

Disclosure of Invention

The invention aims to provide a preparation method of a natural additive capable of enhancing the nutrition, health care, coloring, mouthfeel and strength of flour.

The invention is realized by the following technical scheme: a preparation method of a flour natural additive comprises the following components in parts by weight: 50-80 parts of three-bristle cudrania root, 80-100 parts of three-bristle cudrania branch and 80-100 parts of three-bristle cudrania leaf;

the preparation method comprises the following steps:

1: taking 50-80 parts by weight of cudrania tricuspidata root, cleaning, drying, crushing and sieving by 80 meshes to obtain cudrania tricuspidata root powder, adding 500 parts by weight of 300-fold-water into the cudrania tricuspidata root powder, adding acetic acid to adjust the pH value to 5-6, standing for 12-15 hours, taking supernatant, adding 120 parts by weight of 95% ethanol into the supernatant, uniformly stirring, standing for 12-15 hours to obtain cudrania tricuspidata root ethanol solution, heating and concentrating the cudrania tricuspidata root ethanol solution until the volume of concentrated solution is 8% -10% of the volume of the cudrania tricuspidata root ethanol solution, and obtaining cudrania tricuspidata root concentrated solution;

2: taking 80-100 parts by weight of cudrania tricuspidata branches, cleaning, drying, crushing and sieving by 80 meshes to obtain cudrania tricuspidata branch powder, adding 450 parts by weight of water into the branch powder, adding acetic acid to adjust the pH value to 5-6, standing for 12-15 hours, taking supernatant, adding 150 parts by weight of 95% ethanol into the supernatant, uniformly stirring, standing for 12-15 hours to obtain cudrania tricuspidata branch ethanol solution, heating and concentrating the cudrania tricuspidata branch ethanol solution until the volume of the concentrated solution is 8% -10% of the volume of the cudrania tricuspidata branch ethanol solution, and obtaining cudrania tricuspidata branch concentrated solution;

3: taking 80-100 parts by weight of cudrania tricuspidata leaves, cleaning, drying, crushing and sieving by a 120-mesh sieve to obtain cudrania tricuspidata leaf powder, adding 400 parts by weight of water into the cudrania tricuspidata leaf powder, stirring for 4-6 hours, filtering out solid residues, adjusting the pH value of clear liquid to 4-5 by 0.3mol/L hydrochloric acid to generate precipitates, and obtaining the cudrania tricuspidata leaf precipitates by adopting a filtering method;

4: and (3) uniformly mixing the concentrated solution of the three-bristle cudrania roots obtained in the step (1), the concentrated solution of the three-bristle cudrania branches obtained in the step (2) and the precipitate of the three-bristle cudrania leaves obtained in the step (3) to obtain an additive mixture, carrying out freeze-drying treatment on the mixture at the temperature ranging from-60 ℃ to-40 ℃ and the vacuum degree ranging from 10Pa to 30Pa, sampling every 2 hours until the mass loss of the freeze-dried mixture in every 2 hours is not more than 0.1%, obtaining freeze-dried powder, and packaging to obtain the additive.

The application method of the invention is that 15-20g of the additive is added into each kilogram of flour, and the flour is prepared by adopting a conventional method.

The cudrania tricuspidata is deciduous shrub or small arbor, belongs to the first-level protection plant of China, contains abundant cudrania tricuspidata root polysaccharide in wood, root, bark, leaf and the like, is mainly composed of 4 monosaccharides such as glucose, arabinose, galactose, xylose and the like, has the effects of removing blood stasis and stopping bleeding, clearing liver and improving eyesight, relieving cough and reducing sputum, dispelling wind and promoting diuresis, dissipating blood stasis and relieving pain, has obvious curative effects on phthisis, ironing injury pain, traumatic injury, rheumatism and rheumatoid diseases, and can effectively improve the quality, the coloring, the taste and the strength of flour and improve the nutrition and the health care effect of the flour by using the extract as a flour additive.

The invention has the beneficial effects that: the extract of the natural roots, stems and leaves of the cudrania tricuspidata serving as the raw material is used as the flour additive, is purely natural and has no chemical synthesis, so that the nutrition, the health care, the coloring, the mouthfeel, the strength and the like of the flour can be effectively improved, and the problem of food safety brought by the chemically synthesized flour additive is solved.

Detailed Description

Examples

1: taking 50Kg of cudrania tricuspidata root, cleaning, drying, crushing and sieving by a 80-mesh sieve to obtain a cudrania tricuspidata root powder, adding 300Kg of water into the powder, adding acetic acid to adjust the pH value to 5-6, standing for 12-15 hours, taking supernatant, adding 100Kg of 95% ethanol into the supernatant, uniformly stirring, standing for 12-15 hours to obtain a cudrania tricuspidata root ethanol solution, heating and concentrating the cudrania tricuspidata root ethanol solution until the volume of a concentrated solution is 8% -10% of that of the cudrania tricuspidata root ethanol solution to obtain a cudrania tricuspidata root concentrated solution;

2: taking 100Kg of three-bristle cudrania branches, cleaning, drying, crushing and sieving by a sieve of 80 meshes to obtain three-bristle cudrania branch powder, adding 400Kg of water into the powder, adding acetic acid to adjust the pH value to 5-6, standing for 12-15 hours, taking supernatant, adding 120Kg of 95% ethanol into the supernatant, uniformly stirring, standing for 12-15 hours to obtain an ethanol solution of the three-bristle cudrania branches, heating and concentrating the ethanol solution of the three-bristle cudrania branches until the volume of the concentrated solution is 8% -10% of the volume of the ethanol solution of the three-bristle cudrania branches to obtain concentrated solution of the three-bristle cudrania branches;

3: taking 100Kg of cudrania tricuspidata leaves, cleaning, drying, crushing and sieving by a 120-mesh sieve to obtain cudrania tricuspidata leaf powder, adding 300Kg of water by weight into the cudrania tricuspidata leaf powder, stirring for 4-6 hours, filtering out solid residues, adjusting the pH of clear liquid to 4-5 by using 0.3mol/L hydrochloric acid to generate precipitates, and obtaining the cudrania tricuspidata leaf precipitates by adopting a centrifugation or filtration method;

4: and (3) uniformly mixing the concentrated solution of the three-bristle cudrania roots obtained in the step (1), the concentrated solution of the three-bristle cudrania branches obtained in the step (2) and the precipitate of the three-bristle cudrania leaves obtained in the step (3) to obtain an additive mixture, carrying out freeze-drying treatment on the additive mixture at the temperature of-40 ℃ and the vacuum degree of 30Pa, sampling every 2 hours until the mass loss of the freeze-dried mixture in every 2 hours is not more than 0.1%, obtaining freeze-dried powder, and packaging to obtain the freeze-dried powder.

Claims (1)

1. A preparation method of a natural additive of flour is characterized by comprising the following steps: comprises the following components in parts by weight: 50-80 parts of three-bristle cudrania root, 80-100 parts of three-bristle cudrania branch and 80-100 parts of three-bristle cudrania leaf;

the preparation method comprises the following steps:

1: taking 50-80 parts by weight of cudrania tricuspidata root, cleaning, drying, crushing and sieving by 80 meshes to obtain cudrania tricuspidata root powder, adding 500 parts by weight of 300-fold-water into the cudrania tricuspidata root powder, adding acetic acid to adjust the pH value to 5-6, standing for 12-15 hours, taking supernatant, adding 120 parts by weight of 95% ethanol into the supernatant, uniformly stirring, standing for 12-15 hours to obtain cudrania tricuspidata root ethanol solution, heating and concentrating the cudrania tricuspidata root ethanol solution until the volume of concentrated solution is 8% -10% of the volume of the cudrania tricuspidata root ethanol solution, and obtaining cudrania tricuspidata root concentrated solution;

2: taking 80-100 parts by weight of cudrania tricuspidata branches, cleaning, drying, crushing and sieving by 80 meshes to obtain cudrania tricuspidata branch powder, adding 450 parts by weight of water into the branch powder, adding acetic acid to adjust the pH value to 5-6, standing for 12-15 hours, taking supernatant, adding 150 parts by weight of 95% ethanol into the supernatant, uniformly stirring, standing for 12-15 hours to obtain cudrania tricuspidata branch ethanol solution, heating and concentrating the cudrania tricuspidata branch ethanol solution until the volume of the concentrated solution is 8% -10% of the volume of the cudrania tricuspidata branch ethanol solution, and obtaining cudrania tricuspidata branch concentrated solution;

3: taking 80-100 parts by weight of cudrania tricuspidata leaves, cleaning, drying, crushing and sieving by a 120-mesh sieve to obtain cudrania tricuspidata leaf powder, adding 400 parts by weight of water into the cudrania tricuspidata leaf powder, stirring for 4-6 hours, filtering out solid residues, adjusting the pH value of clear liquid to 4-5 by 0.3mol/L hydrochloric acid to generate precipitates, and obtaining the cudrania tricuspidata leaf precipitates by adopting a filtering method;

4: and (3) uniformly mixing the concentrated solution of the three-bristle cudrania roots obtained in the step (1), the concentrated solution of the three-bristle cudrania branches obtained in the step (2) and the precipitate of the three-bristle cudrania leaves obtained in the step (3) to obtain an additive mixture, carrying out freeze-drying treatment on the mixture at the temperature ranging from-60 ℃ to-40 ℃ and the vacuum degree ranging from 10Pa to 30Pa, sampling every 2 hours until the mass loss of the freeze-dried mixture in every 2 hours is not more than 0.1%, obtaining freeze-dried powder, and packaging to obtain the additive.